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Which GST returns are mandatory to file?

11-Mar-2026
GST

Answer By law4u team

Under Indian GST law, the returns that are mandatory to file depend on the type of taxpayer and registration category. The requirements are prescribed under the Central Goods and Services Tax Act, 2017 and related rules. For a regular taxpayer, the main mandatory returns are GSTR 1 and GSTR 3B. GSTR 1 contains details of outward supplies or sales made during the tax period. GSTR 3B is a summary return that includes tax liability, input tax credit, and tax payment details. These are generally filed monthly, although small taxpayers may have quarterly filing options under certain schemes. If a person has opted for the composition scheme, the returns are different. Composition taxpayers usually file CMP 08 for payment of tax on a quarterly basis and GSTR 4 as an annual return. There are also other returns that may become mandatory depending on the situation. GSTR 9 is the annual return for regular taxpayers subject to prescribed turnover limits. GSTR 9C is a reconciliation statement that may be required in certain cases based on turnover thresholds and audit requirements. Businesses required to deduct or collect tax at source have separate returns such as GSTR 7 or GSTR 8. Even if there is no business activity during a period, a nil return may still need to be filed to remain compliant and avoid penalties. Failure to file mandatory GST returns can result in late fees, interest, and legal consequences including cancellation of registration.

Answer By Anik

Dear client, Under the Goods and Services Tax (GST) system in India, it is mandatory for registered taxpayers to fill in insuring different GST returns at regular intervals to report the business transactions and tax liability to the system. The compulsory returns are dependent upon the type of the taxpayer and the nature of the business. The most common returns which are filed by normal taxpayers are GSTR 1, GSTR 3B, and GSTR 9. GSTR-1 includes the detailed statement of outward supplies or sales that had been made during the relevant tax period by the taxpayer. It incorporates invoice-wise details of goods and services provided, taxable value, and the amount of GST charged. This return is generally filed monthly or quarterly depending on the turnover of the taxpayer. GSTR-3B is a monthly summary return wherein the taxpayer shall make a declaration of the sales and purchases, input tax credit claimed and tax liability payable to the government. It is through this return that the GST due for the particular tax period is paid by the taxpayer. Taxpayers have to file GSTR-9 at the end of the financial year, which is an annual return summarizing all the transactions reported during the year including outward supplies, inward supplies, tax paid and input tax credit claimed. In addition to these, special categories of taxpayers have certain special returns which are required to be filed. For example, GSTR-4 is filed by the taxpayers of the composition scheme, GSTR-7 is filed by the persons who are mandated to deduct the tax at source (TDS) and GSTR-8 is filed by the operators involved in e-Commerce who collect the tax at source (TCS). Filing these returns within prescribed time limits are compulsorily required as per GST law and failure to do so might lead to late fees and penalties and also to restriction on claiming of input tax credit. If you have any query please feel free to contact us.

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